export interface Base64Data {
    data: string;
    mimeType: string;
}
export declare class BinaryUtils {
    /**
     * Converts a URL (data:, http:, or local path) to a base64 string and mime type.
     */
    static toBase64(url: string): Promise<Base64Data | null>;
    private static guessMimeType;
}
//# sourceMappingURL=Binary.d.ts.map